baber/WOPTO huggingface dataset:
Patent GB-776562-A (GB)
Title: Method of removing adherent metallic salt from transition metals
IPC: C22B34/20
Filed: 1954-10-25
Abstract: Adherent metallic salt is removed from Ti, V, Nb or Ta by leaching the metal with an aqueous medium incorporating a per-oxygen oxidizing compound but no extraneous acid, and then washing with a concentrated mineral acid.  The term per-oxygen compound is defined as a compound having in its molecular structure the peroxide -O-O- bridge, and per-oxygen compounds referred to are hydrogen peroxide, metal e.g. alkali and alkaline earth metal peroxides, per-sulphates, per-borates and ozone.  The leaching step is repeated with fresh leaching medium until all the salt is removed and the acid washing step is followed by a washing with water.
Patent GB-254968-A (GB)
Title: Improvements in or relating to electric motor controllers
IPC: H02P1/20
Filed: 1925-12-04
Abstract: 254,968. Igranic Electric Co., Ltd. (Czttler-Ham,nter Manufacturing Co.). Dec 4, 1925. Master control systems.-Controllers adaptec to accelerate the motor in stages with a pause at each stage occasioned by a transient current from the secondarv of a transformer or like have damping means adapted to retard the building up of the transient current. In a controller comprising a number of successively acting contactors 2 - - 5 provided with lock-out magnets 12 - - 15 energized by transient currents from a transformer 18, the transforming effect is produced by using a transformer with a solid, non- laminated core, or with a core surrounded by metal washers or a short-circuited winding.
Patent GB-997011-A (GB)
Title: Improvements in or relating to thraxanthene derivatives
IPC: A61K31/00
Filed: 1961-08-25
Abstract: The invention comprises compounds of the formula <FORM:0997011/C2/1> (wherein R1 is hydrogen or C1- 4 alkyl, an R2 and R3 are each C1- 4 alkyl, or R2 togethe with either R1 or R3 is C2- 5 alkylene (polymethylene), or -NR2R3 may be morpholine) and acid-addition salts thereof; and their preparation by splitting water from compounds of the formula <FORM:0997011/C2/2> Examples are given, and salts with inorganic and organic acids are described.  The thioxanthene derivatives of the invention are stated to exhibit a histamine inhibiting effect and may be made up into pharmaceutical compositions with suitable carriers.  Specification 997,012 is referred to.
Patent GB-1476816-A (GB)
Title: Calendar mechanism for a timepiece
IPC: G04B19/253
Filed: 1975-07-23
Abstract: 1476816 Calendar watches DAINI SEIKOSHA KK 23 July 1975 [26 July 1974] 30810/75 Heading G3T A calendar mechanism for a watch comprises a correcting wheel 1 with gear portions 1a, b which can directly engage the teeth of a date wheel 3 and a day wheel 4 respectively, whereby rotation of the wheel 1 corrects a selected one only of the day and date wheels. Each of the gear portions 1a, b comprises a pair of diametrically opposed and ratchet shaped teeth, the two pairs being rotationally staggered by 90 degrees with respect to each other. The wheel 1 is moved axially into its correcting position by pulling out stem 2, and is biased to the left in Fig. 1 by a spring (not shown). In each direction of rotation, the wheel 1 drives a respective one of the wheels 3, 4 and slips with respect to the other by the ratchet action of the teeth. The teeth 3a, 4a may alternatively or additionally be ratchet shaped.
Patent GB-1356103-A (GB)
Title: Brushless alternators
IPC: H02H7/06
Filed: 1970-06-26
Abstract: 1356103 Protective arrangements DUPAR PELAPONE Ltd 7 July 1971 [26 June 1970] 31070/70 Heading H2K  A protective arrangement for a brushless alternator comprises a voltage-responsive sensing device CB connected across the exciter field winding 6. The sensing device may be a circuit-breaker trip coil CB connected in series with a variable resistor RV1 across the exciter field winding, the contacts CB-1 of the circuitbreaker being connected in series with the automatic voltage regulator 7 through which the supply to the field winding 6 is provided. Alternatively, the sensing device may be a solid state device or a thermal device and the device may in addition to, or alternatively to, causing the opening of the fluid circuit, actuate a visual or audible alarm.
Patent GB-1074113-A (GB)
Title: Improvements in or relating to aerial systems
IPC: H01Q3/00
Filed: 1964-08-04
Abstract: 1,074,113. Aerials. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Aug. 4, 1964 [Aug. 6, 1963], No. 31102/64. Heading H4A. In a radar aerial system in which vertical scanning of one or more radio beams is effected by electrical means; a number of waveguides 1, 2 ... n, Fig. 3, are disposed parallel and side by side, with their upper faces, which have radiating slots, substantially co-planar, and the assembly is fed with energy from one end, means being provided for controlling the relative phase of the input to each waveguide. As described, the waveguides are fed by a horn C via a lens L, controllable ferrite phase shifters D inserted in their input ends producing equal phase difference # between adjacent waveguides, so that if the phase at waveguide 1 is taken as zero (datum) the phase at waveguide 2 is # and at waveguide n, (n - 1)#. When the waveguides are lying in a horizontal YOX plane, Fig. 4 (not shown), and are pointing in the direction. of OX, the radio beam will be at an angle 6 to the vertical OZ, and this angle may be varied for vertical scanning by ganged control of the phase shifters. In another embodiment, Fig; 5 (not shown), three feed horns (F 1 ,F 2 , F 3 ) are provided which when simultaneously excited give rise to a series of beams at different angles of elevation in the ZOY plane. In yet another embodiment, Fig. 7 (not shown), the lens (L) is dispensed with, a sectoral horn (S) being fed by four horns (F o , F 1 , F 2 , F 3 ) and additional ferrite phase shifters (E) are provided in some of the waveguides. In a practical application, Fig. 8, a sectoral horn S is folded beneath the waveguide assembly G, the complete unit being mounted on rollers R in a pit, with an associated transmitter-receiver in a cellar below. The surface of the waveguide is protected by blocks of layered plastic material and the aerial structure is carried on bricks in order to reduce the effect of blast, it being stated that a pressure shock wave of 20 lbs/sq. in. can be withstood without causing more than a temporary interruption of service.
Patent GB-747511-A (GB)
Title: Flexible electric heating surfaces
IPC: H05B3/16
Filed: 1953-11-10
Abstract: 747,511. Making electric heaters; formers. GUERILLOT, P. Nov. 10, 1953, No. 31103/53. Classes 83 (2) and 83 (4). [Also in Group XI] An electric heating surface (see Group XI) is made on a frame ABCD which has spikes b on two sides to puncture and hold plastic sheets, as e, and has on each of the other two sides a removable comb-like device with a row of stops about which a heating element d, composed of a plurality of fine metal wires, is looped. The first sheet is put on the frame and the element d looped under tension on the stops of the frame, which are staggered in the two rows. The upper sheet e is then applied and secured along lines as f 1  ... f 4 , parallel to the branches of the element d, by sticking, stitching or welding, the lines f 1  ... f 4  being connected by semi-circular lines. The stops are then removed, releasing the tension in the element d, the surface taken of the spikes b, and the edges of the sheets joined after cutting the sides AD, BC inside the lines of spikes b.
Patent GB-324626-A (GB)
Title: Improvements in speedometer driving mechanisms
IPC: B60Q1/54
Filed: 1928-10-26
Abstract: 324,626. Marks, Sir G. C., (A.C. Spark Plug Co.). Oct. 26, 1928. Speed-indicator transmission mechanism. - Comprises a drive mechanism having a driving and driven shaft and interchangeable gearing in between comprising housing members relatively rotatable about their common axis, a gear shaft in each housing member and carrying mutually intermeshing gears, said shafts being eccentrically positioned with respect to their associated members. In a supplemental housing 1 secured to the transmission housing 5 is supported a shaft 11 extending from the transmission housing. At the end of the housing 5 is a closure 13 through which the shaft 11 passes. A driving gear 17 keyed to the shaft 11 gears with a pinion 27 on a shaft 19 extending transversely across the housing at one side of the shaft. One end of the housing is cup-shaped and a cover 33 may be rotated about the common axis of the cup-recess and the cover which may be secured by a pin 39 on the housing engaging any of a series of semicircular grooves in the edge of the cover. A threaded sleeve 41 is adapted to be connected to the flexible housing of a speedometer shaft and accommodate a shaft 43 arranged eccentrically to the common axis of cover and housing. A gear 49 on the shaft 43 gears with a gear 31 on the shaft 19 and by rotating the cover other gears may be substituted for the gear 49 to accommodate change in size of tyres or other changes affecting the speedometer. In a modification the gear 43 meshes with an internally toothed wheel on the shaft 19. In further modifications a shaft driven from an extended transmission shaft is coupled to the speedometer through an adaptor unit in which the gears are arranged on sleeves eccentrically mounted relatively to the common axis of a casing and cover plate.
Patent GB-358734-A (GB)
IPC: F16G11/04
Filed: 1930-10-17
Abstract: 358,734. Clamps ; ropes. FELTEN & GUILLEAUME CARLSWERK AKT.-GES., 24, Schanzenstrasse, Mulheim, Cologne, Germany. Oct. 17, 1930, No. 31177. Convention date, Oct. 24, 1929. Addition to 338,842, [Class 109, Ropes &c.]. [Classes 44 and 109.] The wrapping of the wire rope with bandages of wire or tape, described in the parent Specification, is replaced by compression of the rope by closely disposed, preferably conical, clamps. The clamps are removed after the rope has been placed in working position. Each clamp preferably comprises a two or more part conical externally threaded sleeve b which is pressed on to the rope a by a two-part nut c screwed over it. The sleeve may taper towards both ends and may be secured upon the rope by two-part nuts, one of which is screwed over each of its ends.
Patent GB-660821-A (GB)
Title: Improvements in or relating to picture and sound reproduction for schools
IPC: G11B33/06
Filed: 1948-12-02
Abstract: 660,821. Optical - projection apparatus. GUINNESS, G. H. GRATTAN-. Jan. 2, 1950 [Dec. 2, 1948], No. 31287/48. Class 97 (i). The apparatus as shown in plan comprises a structure a having walls a1, a2, a3, a' and completed by an angled wall having an aperture in which a screen b is mounted. Doors f may be closed to cover the screen. Each carries a sector-shaped leaf f<SP>1</SP> at the top which acts as a light shield when the door is open and is contained in the structure above the screen when the door is closed. A flap e is hinged at the bottom of an aperture in the wall a<SP>4</SP> to form a shelf to support a projector e<SP>1</SP>. The projection beam is reflected on to the screen by a mirror c. The structure has a lower compartment containing a loud-speaker.
Patent GB-861739-A (GB)
Title: Electromagnetic clutch having frictional and positive members
IPC: F16D27/12
Filed: 1957-10-07
Abstract: 861,739. Clutches. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Oct. 7, 1957 [Oct. 5, 1956], No. 31360/57. Class 80 (2). A combined friction and positive clutch in series provides for the smooth engagement of the friction clutch and the rapid disengagement of the dog-clutch. A magnet body 15, 17, 18, 19, 21 rotatably mounted on a sleeve 6 secured to the driven shaft 5 is adapted to attract both the armature 3 of friction clutch discs 4, 24, and the armature 8 of a dog-clutch 23, 25. The armature 3 slides axially on splines 2 of the driving-wheel 1 whilst the armature 8 slides on splines 7 on the driven sleeve 6. The ring 19 of the magnet body and the ring of dog teeth are made of non-magnetizable material and spring- loaded plungers 31 act to disengage the dog clutch. In operation when the magnet coil 15 is energized the dog-clutch is engaged immediately whilst the friction-clutch gradually takes up the drive. On de-energization the dog-clutch releases quickly whilst the friction clutch gradually disengages. In a modification a brake engages the driven member when the coil 15 is de-energized to bring it quickly to rest.
Patent GB-1154096-A (GB)
Title: Method of preparing Hydrogen Peroxide
Inventor: LYNN SCOTT
IPC: C01B15/023
Filed: 1967-07-07
Abstract: 1,154,096. Hydrogen peroxide. DOW CHEMICAL CO. 7 July, 1967 [18 July, 1966], No. 31496/67. Heading C1A. Hydrogen peroxide is prepared by dissolving an alkyl anthraquinone in an organic solvent, then reducing the anthraquinone with an alkali metal amalgam at a temperature not exceeding 100‹ C. to give the sodium salt of the corresponding hydroquinone, separating the product from the mercury and acidifying it with an acid having an ionisation constant Ka greater than 10<SP>-8</SP> to release the corresponding hydroquinone and form the sodium salt of the acid, separating the hydroquinone and oxidizing it in solution with a free oxygen containing gas at a temperature not exceeding 100‹ C. to form hydrogen peroxide and the initial alkyl anthraquinone dispersed in an organic solvent, from which mixture the H 2 O 2  is recovered. In the preferred anthraquinone, the alkyl group has 1-4 C atoms and that particularly specified is 2-ethyl anthraquinone. The amalgam used may contain 0À1 to 2À0 moles of alkali metal per mole of anthraquinone reacted therewith. The specified solvents are trialkyl phosphates, aromatic hydrocarbons, aliphatic alcohols, triorylphosphates, trialkylaryl phosphates, xylene, and 2-octanol, the preferred solvents being a mixture of tributyl phosphate and diethylbenzene, or simply diethylbenzene. Water may be present in the solution to act as a solvent for the hydroquinone salt.
Patent GB-178153-A (GB)
Title: Improvements relating to caps, covers and the like used for tins, bottles, receptacles and the like
IPC: B65D50/04
Filed: 1920-11-08
Abstract: 178,153. Brown, R. S. Nov. 8, 1920. Stoppers closuring at mouth of vessel; vacuum closures; stoppers, making.-Relates to closures for bottles, tins, jars, &c. of the type comprising a lid having a rim with locks, and clearances between the rim and the receptacle, disengagement of the locks from corresponding portions of the receptacle being effected by pressing the rim inwards at the clearances. According to the invention a closure of this type is so constructed and applied to the receptacle as to obtain a substantially direct uniform seal between the closure and the receptacle. This may be effected with or without a sealing medium, and the surface of the closure making the sealing contact may be formed into a surface of rotation by arranging for the flow of material at the parts deformed in making the locks and clearances. In the form shown in Fig. 1, a lid b is formed with locks k, k' on the depending rim and with outwardly deformed clearances l. On applying inward pressure at the points l, a releasing action is set up in the directions m, thus disengaging the locks k, k<1> from the corresponding formations on the receptacle. In this form, one lock k may be shorter than the other and the position for applying the inward releasing pressure nearer to one lock than the other. In another form, the cover and the receptacle may be rectangular, the locks being on two opposite sides. In the form shown in Fig. 7, the cover is circular, the clearances being obtained by recesses r<1>, r<2>, r<3>. The cover is applicable to tapered vessels, tumblers, " pepperettes," or receptacles formed with beadings, projections, &c., which may be adapted to offer more than one locking position for the lid to lock, or at more than one rim-engaging level. The rim may be integral or non-integral with the cover and may be interrupted, channelled, beaded, cut, or otherwise strengthened or weakened to vary the disengaging action; the locks may be strengthened or may be disposed at different levels. In the form shown in Fig. 12, additional locks k' not disengaged by rim deformation may be provided to secure the closure against accidental release. Engagements of the form described in Specification 178,148 may be added to any forms to which they are applicable. The rim may be adapted for the application of the disengaging pressure at locks not intended to be disengaged at this stage. An additional seal may be applied at places other than the seal proper. Means, such as are shown at x, Fig. 16, may be provided to apply the inward disengaging pressure on the clearances by rotation until the part x registers with and presses the clearance, inward. The rim may be configured or weakened so as to adapt it for use as a safety valve when used in conjunction with preserved foods. The cover may have hinges in addition to the locks.
Patent GB-1068867-A (GB)
Title: Hydraulic control valve mechanism
Inventor: KOLINEK MILOS
IPC: F15B11/17
Filed: 1964-08-04
Abstract: 1,068,867. Hydraulic apparatus. PREROVSKE STROJIRNY NARODNI PODNIK. Aug. 4, 1964, No. 31542/64. Heading F1P. [Also in Division F2] A control mechanism for a machine operated by hydraulic motors comprises a valve bank 1 supplied with fluid from a pump 28 and a valve bank 8 supplied with fluid from a pump 29. The bank 1 comprises a valve 3 controlling a motor 33, a valve 4 controlling a motor 35 and a valve 6 controlling a motor 36, the valves being provided with by-pass passages to supply the valve 6 through passage 31. The bank 8 is similar to the bank 1, its valves 10, 11 and 13 controlling the motors 34, 36, 35. Thus the motors 35, 36 can each be actuated by one supply or the other, or by both supplies together. The valves 4, 13 and 6, 11 may each be actuated by a lever controlling a cam-shaft, the cams being shaped that movement of the lever actuates first the valve 11, say and then the valve 6.
Patent GB-663697-A (GB)
Title: Improvements in or relating to the production of garments
IPC: A41H3/08
Filed: 1949-12-08
Abstract: 663,697. Making-up garments. LIENHARD, A. Dec. 8, 1949, No. 31546/49. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 12, 1950.] Drawings to Specification. Class 141. Pieces of material for assembly into a garment e.g. dress are provided with markings which are easily removable such as coloured threads, clips, labels or printed matter, indicating the order in which the seams are to be sewn so that the garment may be made up by an unskilled person. The markings may comprise tacking threads, clips, &c. by which the pieces of the garment are provisionally secured together in the correct positions.
Patent GB-1390408-A (GB)
Title: Cyclic process for the production of hydrogen peroxide
IPC: C01B15/023
Filed: 1972-07-06
Abstract: 1390408 Hydrogen peroxide by anthraquinone process SOLWAY & CIE 6 July 1972 [8 July 1971] 31654/72 Heading C1A A mixture of 2-tert. amyl and 2-sec. isoamyltetrahydroanthraquinones are used as intermediates in the anthraquinone process for producing H 2 O 2 . The mixture preferably contains 30-55% by wt. of the 2-tert. compound and 70-45% of the 2-sec. compound. The solvent may be a mixture of (a) C 6 -C 11  petroleum fractions, naphthalene, chlorinated hydrocarbons, alkyl benzenes or anisole with (b) aliphatic alcohols having at least 6 carbon atoms, e.g. heptanol, methylcyclohexanol, octan-2-ol, diisobutyl carbinol, or aliphatic esters of carboxylic or phosphoric acids. The quinone hydrogenation may be catalysed by Raney Ni, or Pd on hydroxyapatite, Re, Rh, Pt or Pd at a temp. of 45-70‹.C. to 90% conversion. The quinol oxidation may be carried out in air at a pressure of 3-5 kg.(cm.<SP>2</SP> in a co- or counter-current manner in a packed column at a temp. of 20-50‹ C. Anthraquinone by-products may be removed, prior to recycle after H 2 O 2  removal, by treatment with alkali metal or alkaline earth metalhydroxides, or alkaline alumina or aluminosilicates at temp. of 20-150‹ C.
Patent GB-366071-A (GB)
Title: Apparatus for regenerating used lubricating oils
IPC: C10M175/00
Filed: 1930-10-23
Abstract: <PICT:0366071/III/1> <PICT:0366071/III/2> In regenerating used lubricating oil, the oil, after being warmed to cause settling out of water and suspended matters, is purified by mixing with sulphuric acid and the purified oil is filtered and heated with superheated steam to evaporate light boiling hydrocarbons contained in it.  Used oil is supplied to a collecting vessel B provided with a cooling jacket 4.  It is passed by a pump 2 to a vessel A fitted with a hot water jacket and is returned to the vessel B by a pipe 3 opening above the base.  The oil is then forced through a pipe 5 into a vessel C fitted with a rotating stirrer 6 having a hollow vertical axis through which sulphuric acid is supplied from a vessel a.  The treated oil is withdrawn from above the sludge by a pipe 8 having a readily adjustable union with a pipe leading to a filter D, fitted with a hot water jacket 9 and consisting of a bed of bleaching earth covered by a perforated plate d<3> supporting a layer of felt or asbestos d<4>, Fig. 2, to separate heavy particles.  The plate carries one or more overflow pipes d<5> opening above the level of the inlet pipe.  The filtered oil falls into a vessel E in which it is heated to about 150 DEG  C.  Vapours are condensed in a coil F<1> and the condensate is separated from water in a vessel J.  The vessel E is heated by superheated steam circulated through heated tubes 10 and admitted by a pipe 11 and generated in an electrically heated boiler F and superheater G.
Patent GB-320785-A (GB)
Title: Improvements in or relating to trouser and like presses
IPC: A47G25/72
Filed: 1928-11-02
Abstract: 320,785. Cotton, T. A. Nov. 2, 1928. Addition to 303,264. Presses; coat and like hangers.-The garment press of the parent Specification is modified so that the device may be additionally used for hanging garments. Curved arms g are pivoted to one of the press boards so that in the operative position shown for hanging coats the arms engage stops h. The arms are capable of being turned out of the way into the dotted position. The upper edge of one of the press boards is curved, as shown, and the other, which is straight, is provided with a moulding or rail over which trousers are placed to assist stretching. The device may be suspended by a pivoted hook i, or a hole may be made in one of the press boards for this purpose.
Patent GB-306981-A (GB)
Title: Improvements in or relating to the colouring of cellulose derivatives
IPC: D06P3/34
Filed: 1927-11-28
Abstract: 306,981. British Celanese, Ltd., Ellis, G. H., and Olpin, H. C. Nov. 28, 1927. Monoazo dyes; sulphuretted dyes.- Materials made of or containing cellulose esters or ethers are dyed. printed, stencilled, or otherwise coloured by means of unsulphonated thiazole derivatives. the use of basic dves such as Thioflavine T for cellulose ethers, as described in Specification 196.953, [Class 15 (ii), Dyeing, Processes &c, for], being excluded. The following yellow dyestuffs are specified as suitable for application in substance from aqueous dispersions :- the monoazo dyes dehydrothio-p-toluidine # phenol, m-toluylenediamine, or m-toluidine, and the condensation products from 1 mol. of dehydrothio.p-toluidine and 1 mol. of 2 : 4-dinitrochlorobenzene or 2 : 5-dichloronitrobenzene.